Re: [Xen-devel] network root bridge problem

[Ian Pratt <Ian.Pratt@xxxxxxxxxxxx>]

> I just had another idea, what about hacking the bridge code to take
> kernel parameters to autoconfig a bridge? eg 'br0=eth0'. In this way you
> have br0 at boot time and can use it from the word go. Kernel boottime
> dhcp would work etc. The only gotcha would be that you'd have to have
> the Ethernet driver you require compiled into the kernel, but that would
> be the case anyway if you were using kernel level dhcp.

If you go down this route, it's probably best to have something
like: "bridge=eth0 ip=:::::br0:dhcp" where bridge is a comma
separated list of interfaces to be added to the bridge, perhaps
with ':' to separate multiple bridges.

It all gets a bit messy if you need to set any of the other
bridge parameters (stp,forward delay, hello, etc.).

I'm not sure we'd ever get this in to the mainstream Linux tree,
though it might be worth talking to the bridge folks.

Personally, I'd prefer a solution for atomically creating and
configuring the bridge that we could use after boot time too.

Ian


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